Why are they famous?

CaptionTara Reid

Photo by Jason Merritt/Getty Images for Cedars-Sinai

Tara Reid actually acts - and yes, you've heard of the movies. However, 'The Big Lebowski' and 'American Pie' have been replaced by such straight-to-DVD flops as 'Senior Skip Day.' They say there's no such thing as bad press, but Reid's party-girl reputation seems to have overshadowed her legitimate cinematic contributions.

Tara Reid actually acts - and yes, you've heard of the movies. However, 'The Big Lebowski' and 'American Pie' have been replaced by such straight-to-DVD flops as 'Senior Skip Day.' They say there's no such thing as bad press, but Reid's party-girl reputation seems to have overshadowed her legitimate cinematic contributions. (Photo by Jason Merritt/Getty Images for Cedars-Sinai)

Like all the best socialites, Park Avenue princess Tinsley Mortimer has added 'reality TV star' and 'fashion entrepreneur' to her resume. You might recognize her from a cameo appearance on 'Gossip Girl,' or perhaps her own CW show, 'High Society,' which is GG minus the professional actors. But you might not recognize her clothing line, Riccime by Tinsley Mortimer - it's only available in select stores in Japan.

Like all the best socialites, Park Avenue princess Tinsley Mortimer has added 'reality TV star' and 'fashion entrepreneur' to her resume. You might recognize her from a cameo appearance on 'Gossip Girl,' or perhaps her own CW show, 'High Society,' which is GG minus the professional actors. But you might not recognize her clothing line, Riccime by Tinsley Mortimer - it's only available in select stores in Japan. (Photo by Jason Kempin/Getty Images)

Hollywood seems to have a new infatuation with celebrities who are famous for being...well, famous. Thank you, reality TV, for introducing the world to these divas, bros and hooligans. Here's a list of who you should know, and why the entertainment gods decided their lives were worth chronicling.